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[1]TIAN Chao,YANG Xiajie,JU Yuanhua,et al.Dynamic Evaluation of Ecological Vulnerability in Western Jilin Province[J].Research of Soil and Water Conservation,2018,25(04):298-303.

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Dynamic Evaluation of Ecological Vulnerability in Western Jilin Province

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 25 Number of periods: 2018 04 Page number: 298-303 Column: Public date: 2018-06-13

Title:: Dynamic Evaluation of Ecological Vulnerability in Western Jilin Province

Author(s):: TIAN Chao^1,2, YANG Xiajie^1,2, JU Yuanhua^1,2, GUO Futao^1,2; 1. Forestry College, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
2. Collaborative Innovation Center of Soil and Water Conservation, Fuzhou 350002, China

Keywords:: western Jilin Province; ecological fragility; principal component analysis; spatial dynamic change

CLC:: X826

DOI:: -

Abstract:: Taking western Jilin Province as the study area, we selected 10 indicators including the per capita GDP, population density, actual cultivated land area at the end of the year, land use type, the average annual precipitation, annual average relative humidity, average temperature, slope, elevation and vegetation coverage to build the ecological vulnerability evaluation system by using factor analysis. And based on the principal component analysis, we quantitatively evaluated and classified the ecological vulnerability in 2000, 2006 and 2012. Finally, we analyzed the spatial distribution and dynamic change of ecological vulnerability in western Jilin Province. The results showed that the average value of ecological fragility level index (EVLI) in 2000, 2006 and 2012 were 0.600±0.129, 0.531 9±0.111 and 0.506±0.118, respectively, indicating that the overall vulnerability index was in a moderately fragile level; During 2000—2012, the EVLI in western Jilin Province presented the downward trend, which indicated that the overall ecological environment of the study area was gradually improved. With respect to spatial distribution pattern, ecological fragility was low in the east and high in the western. Moreover, during 2000—2012, the ecological vulnerability of the study area was mainly affected by climate factors and land use types.

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